Water-gas apparatus



WATER GAS APPARATUS Filed April 1 1925 2 Sheets-Sheet l Arm/wag June 24, 1930. c. s. CHRISMAN 1,767,579

WATER GAS APPARATUS Filed April 18, 1925 2 Sheets-Sheet 2 WITNESS:

V Patented June 24,

. ipmrso s A Es ognmwm wn'rzmeas gramme Application an April 18, 1925. Serial 1%. 24,084,

The principal object-of the present invention is to provide for easily and safely reversing the flow of steam and gas through a water gas apparatusb valve means external to the flow or path the products of combustion. 1 Another object of the invention is to provide that said valve means shall automatically control in its operation the steam supply to the water gas apparatus. Another object of the invention is to provide for theemployment of reversing valve means WhlCh' shall e comparatively. inexpensive i n -respect both to first cost and to maintenance in comparison with what are commonly calledand are well understood as hot valves which are dispensed with. Another object of the invention isto take advantage of the difference in pressure due to the fuel bed 1n order to insure that the reversing valve means when positioned shall beforced to seat.

Other objects will appear from the following description but, it may be said that, gen-- erally stated, the invention comprises water gas apparatus'including in combination a set of vessels having operatively valveless intercommunication and including a generator and its fuel bed provisions a wash box, a valve casing arranged outside of sa1d vessels and having two ported admission chambers respectively communicatin with the ends of the set of vessels and aving an outlet chamber communicating with the wash box and with said admission chambers, a reciprocatingshaft carrying a pair of disks spaced on the pressure side of said ports and each when closed held in closed position by the pressure due tothe difference in pressureat the ends of the set, and steam cyliders and pistons for shifting the shaft against sa1d pressure and each havingvalve "elements and connections for reversing the steam supply to the set. The invention also comprises the improvements to be presently described and finally claimed. I

In the description reference will be made to the accompanying drawings forming part hereof and in which Figure 1 is an elevational view illustrating a set of blue waterlgas apparatus vessels to which the invention is shown in application.

the vinvention.

s an igniter.

boiler.

Fig. 2 is-a sectional plan view drawn to an PATENT onus cmnnns s. CKBISMAIN', or csEsm -rmnmvmm, h'ssrenon TO m U. o. 'I. v

commc'rme columnar, or znmsnnnrnm, rmmsvr-vmm, A conromrxon enlarged scale, taken generallyon the line 22 of,Figure' 1, and turned through 90 from the position shown in Fig; 1, and

Fig. 3 is a sectional 'elevational view taken on the line 3-3 of Fig. 2.

1, 2 and 3 are the vessels of blue water gas apparatus chosen from among. other .water gas apparatus for'the sake of explanation of Of these 1 is a water gas generator having fuel bed provisions 4, and 2 3-is a steam generator or steam municates .by means of the connection 5 which is o eratlvely valveless, and the igniter 2 and oiler 3 are in communication by means of theconnection 6 WhlCh is I also operatively valveless. is awash box gas ls'led away for storage or use. Sis an air connection by which air is introduced under the. grate 4 and throu h the fuel bed thereon with the production of blast gas which passing by 5 may receive additional airby connection 9 and which is ignited in the vessel 2;from which it passes by 6 downward through the'boiler-and thence the products of combustion pass by the stack connection 10 fitted with a valve generally indicated at 11.

The step described is commonlycalled the blow. The apparatus shown is adapted for up and down runs meaning that steam I is passed either upward or downward throughthe fuel bed, the resultant water gas being led off at the top or bottom of the generator.

The valve ll'is closed during each run and at an up'run the path of the gas is from the generator 1, by 5 through a vessel or vessels a connection 13 serves as a steam connection.

15 is a valve casing arranged outside of the vessels of the set and it has two admission chambers 16 and 17 respectively communicatfrom which the The gas apparatus 1 and'2 intercoming with the end connections 13 and 12 of the set of vessels.

'These chambers are provided with ports 18 and 19 leading to the out I let chamberthat communicates with the 4 fourway cook from which lead a pipe 31' wash box 7. 21 is an endwise reciprocatable shaft and it carries a pair of disks 22 and 23 spaced on the pressure side'of the ports 18 and 19 and each, when closed, held in a closed sition by the ressure due to the diflerence IILPIOSSIIIG at t e ends of the set-which dif ference in pressure arises by reason of the resence of the fuel bed at 4. 24 is a manole cover. There are steam cylinders 25 and 26 and pistons 27 and 28 forshifting the shaft 21. 29 is asteam inlet connection to a r to the end of the cylinder 26, and a pipe 32 to the end of'the cylinder 25, and an ex.--

haust 33 which may well becontracted or restricted so as to delay exhaust from the cylindam and thus prevent'too uick movements of the shaft 21 and valve 'sks 22 and 23. The piston 27 cooperates as a valve element to cover ahduncover a. port 34 leading to steam. pipe 14. The piston 28 cooperates with; the port 35 as a valve element to cover and uncover the port 35to admit and exclude steam to the chamber 16 which communicates with the connection 13.

With the parts in the positions shown and with the valve 11 closed, steam is passed from 29, by 32, 25, 14, 6, 2 and 5 to thetop of the water gas generator, and water gas'is passed from t 'ebottom of the generator by 13, 16, 18 and 20 to the wash box. The pressure on .top of the fuel bed is greater than the pressure under it and the greater ressure is actin on the disk valve 23 to ho dit to its seat. When the four-way valve 30 is in its righthand position steampassesb 29 31 too linder26 y shaft 21.

which steam moves piston 28 an toward the right with-pro r movement due to the -restricted- ;exhaust cm the cylinder 25, by 32 and 33, thus the disk 22 is. seated and the disk 23 unseated and steam passing through the cylinder 26 and port 35 reaches the chamber 16, which communicates by 13 with the base of the generator 1. The greater pressure which exists beneath the fuel bed acts to hold the disk 22 to its seat. The port I 19 is uncovered and gas p b 5, 2, 3, 12,

17, 19 and 20 to the wash box. y a repetition of the described operations the reversing valve is efiective to produce up and dow i steam runs in response, in the present instance, to the manual setting of the valve 30. There is an advantage in steam through theconnection 13 in that it insures the removal of gas from the lower part of the water gas generator where it might be exploded u n the admission of the \air for the succeeding air blasting step. In connection with the described reversing valve it is scribed reversing valve is that steam is not admitted to either end of the setuntil communication at the end of the set at which steam is admitted with the wash box outlet 20, which leads to 'a gas holder, is closed.

It-will be -obvlous to those skilled in the 'art to which the invention relates that modi-- fications may be made in details of construction and arrangement and in matters of mere form without departing from the spirit of the invention which is not limited to suchthings or otherwise than the prior, art and and boiler, valve mechanism inc udinfi a steam reversing valve controlling the of steam-to the generator, a water gas flow water gas generator ada ted valve controllin the flow of mater gas from v the generator, t e flow valve comprising a.

reciprocating shaft having pistons and dISkS attached thereto, said pistons being 'controlled by thesteam reversing. valve, and. a

steam connection from the steam-reversing,

valve to the igniter. v

2. water gas apparatus including in combination; a water gas generator adapted to contain a 'fuel bed, a valve casing, a conduit.

leading from the top of said g'enerator,to

' said valve casing, a conduit leading from the bottom of said generator to said valve casing, said valve casing containing chambers connected chamber separated from saidchambers by partitions, a rod mounted in said casing,

isks and pistons mounted on said rod, cylinders in which said pistons reciprocate, a steam supply inlet, a valve connected to said inlet an operable to connect either of said cylinderswith said steam supply and the other of said cylinders with an e aust, said disks cooperating with openin s-in said artitions so as to connect one 0 said con uits with said outlet chamber and to close connection-between the other conduit and said outlet chamber, a port adapted to be closed b one piston between one cylinder and the c amber connected to the conduit connected to the lower end of said generator, a port adapted to be closed .by the other piston leadto said conduits and an outlet.

ing fromthe other cy1inder,'a connection from said last port to the conduit connected .to the upper part of the I nerator, and a wash box connected to sai outletchamber;

CHARLES S. .CHRISMAN.

an advantage that it controls not only the direction of flow but also the appropriate location for introducing steam into the gen-.-

erator so that erroneous connections may not 

